UCC25230DRMR datasheet(4/21 Pages) TI1

Part #	UCC25230DRMR

Description	12-V to 100-V Input, 0.2-A Output Switching Converter

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Manufacturer	TI1 [Texas Instruments]

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UCC25230

SLUSAQ6A

– NOVEMBER 2011

www.ti.com

ELECTRICAL CHARACTERISTICS

VIN = 48 V, 1-µF capacitor from VIN to GND, 1-µF capacitor from VDD to GND, TA = TJ = -40°C to 125°C,

(unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNITS

Supply Currents

IVIN

Quiescent current

VIN = 5 V

0.5

2

mA

IVINO

VIN operating current

FB = COMP

4.5

10

VDD Regulator

VDD

VDD, output voltage

8.46

9

9.54

V

Line regulation

17 V

< VIN < 75 V

±5

±40

mV

Load regulation

-2 mA

< IVDD < 0 mA

±5

±40

VDD current limit (when VDD = 5.5 V)

-2

-6

-13

mA

Internal Undervoltage Lockout (VDD_UVLO)

VDDrising

VDD rising threshold

7.0

7.5

8

VDDhyst

VDD threshold hysteresis

0.4

0.7

1.1

V

VDDfalling VDD falling threshold

6.3

6.8

7.3

Undervoltage (external programmable)

Falling threshold

0.9

1.0

1.1

V

Ihyst

7

11

18

µA

Overvoltage (external programmable)

OVLO Rising threshold

4.5

5

5.5

V

Ihyst

-15

-22

-40

μA

VIN Power GOOD

PG output sink resistance

IPG = 5 mA to 10 mA

50

100

Ω

Oscillator

f

Oscillator frequency fixed

324

380

445

kHz

DCMIN

Minimum duty cycle

FB = 3.0 V

0%

DCMAX

Maximum duty cycle

FB = 2.0 V

85%

Frequency variation

12 V

< VIN < 75 V

-15%

15%

4

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